GRAFAIS Research Group, Institut Nacional d'Educació Física de Catalunya (INEFC), Universitat de Barcelona (UB), Barcelona, Spain; CLINURSID Research Group, School of Nursing, University of Santiago de Compostela, Santiago de Compostela, Spain; Faculty of Health, University Camilo José Cela, Madrid, Spain.
Faculty of Health, University Camilo José Cela, Madrid, Spain; Foundation for Biosanitary Research and Innovation in Primary Care, Madrid, Spain.
Am J Emerg Med. 2023 Sep;71:163-168. doi: 10.1016/j.ajem.2023.06.035. Epub 2023 Jun 28.
To determine whether dispatcher assistance via smart glasses improves bystander basic life support (BLS) performance compared with standard telephone assistance in a simulated out-of-hospital cardiac arrest (OHCA) scenario.
Pilot study in which 28 lay people randomly assigned to a smart glasses-video assistance (SG-VA) intervention group or a smartphone-audio assistance (SP-AA) control group received dispatcher guidance from a dispatcher to provide BLS in an OHCA simulation. SG-VA rescuers received assistance via a video call with smart glasses (Vuzix, Blade) connected to a wireless network, while SP-AA rescuers received instructions over a smartphone with the speaker function activated. BLS protocol steps, quality of chest compressions, and performance times were compared.
Nine of the 14 SG-VA rescuers correctly completed the BLS protocol compared with none of the SP-AA rescuers (p = 0.01). A significantly higher number of SG-VA rescuers successfully opened the airway (13 vs. 5, p = 0.002), checked breathing (13 vs. 8, p = 0.03), correctly positioned the automatic external defibrillator pads (14 vs.6, p = 0.001), and warned bystanders to stay clear before delivering the shock (12 vs. 0, p < 0.001). No significant differences were observed for performance times or chest compression quality. The mean compression rate was 104 compressions per minute in the SG-VA group and 98 compressions per minute in the SP-AA group (p = 0.46); mean depth of compression was 4.5 cm and 4.4 cm (p = 0.49), respectively.
Smart glasses could significantly improve dispatcher-assisted bystander performance in an OHCA event. Their potential in real-life situations should be evaluated.
在模拟院外心脏骤停（OHCA）场景中，比较通过智能眼镜提供调度员协助与通过智能手机提供音频协助对旁观者基本生命支持（BLS）表现的影响。
这是一项试点研究，28 名非专业人员被随机分配到智能眼镜-视频协助（SG-VA）干预组或智能手机-音频协助（SP-AA）对照组，在 OHCA 模拟中接受调度员指导以提供 BLS。SG-VA 救援人员通过连接到无线网络的智能眼镜（Vuzix，Blade）进行视频通话获得协助，而 SP-AA 救援人员则通过激活扬声器功能的智能手机接收指令。比较 BLS 协议步骤、胸外按压质量和操作时间。
与 SP-AA 救援人员（0 名）相比，SG-VA 救援人员中有 9 名正确完成 BLS 协议，而 14 名 SG-VA 救援人员中有 13 名成功开放气道（p=0.01），13 名检查呼吸（p=0.03），正确放置自动体外除颤器电极片（p=0.001），并在电击前警告旁观者保持距离（p<0.001）。在操作时间或胸外按压质量方面未观察到显著差异。SG-VA 组的平均按压频率为 104 次/分钟，SP-AA 组为 98 次/分钟（p=0.46）；平均按压深度分别为 4.5 厘米和 4.4 厘米（p=0.49）。
智能眼镜可显著提高 OHCA 事件中调度员协助的旁观者表现。应评估它们在现实生活中的潜力。
